Highlight the notes to be played on the keyboard

[probonopd]

Especially in playalong mode, I find it confusing that the colored keys on the on-screen keyboard don't reflect what I should play.

So in playalong mode, I think it should either highlight the notes to be played on the keyboard instead of the notes that have been played previously, or there should be a settings switch to enable this behavior.

Thanks for your consideration!